<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
        /*text-decoration*/
        p{
             text-decoration: underline;
          /*  text-decoration: underline;
            text-decoration: underline;
            text-decoration: underline;
            text-decoration: underline;*/
        }
    </style>
</head>
<body>
     <p>这是一段有哲理的话</p>
</body>
</html>